Hybrid Battery Seemed to Stop Working on Drive Home Today

[heady]

Indeed, and probably why the battery goes into hibernation when it gets really hot outside. Nothing anything with a battery can do when it's sitting still at high temperatures though where it spends most of its life, baking in extreme climate conditions, thermally aging at accelerated rates - unless the vehicle has a plug on it and runs the AC while parked, as some do. Heat prematurely ages everything, rubber, plastic, paint, batteries... It's a tough life in the desert

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[heady]

There's definitely no ac refrigerant lines that interface with the low temp coolant system on my truck, straight to the firewall for the cabin evaporator, and that's it. 4 liquid coolant lines wrap down around the firewall to the HV battery, two complete the loop to the drive inverter and dcdc converter, and two to the pumps/front radiator circuit.

 

[BlueSpec1]

My Maverick & Escape:

23 Maverick 2.5L Hybrid AC Line:

22 Escape 2.5L Plug In Hybrid, High Voltage Battery Coolant Cooler (per the manual)

 

[heady]

My Maverick & Escape:

23 Maverick 2.5L Hybrid AC Line:

22 Escape 2.5L Plug In Hybrid, High Voltage Battery Coolant Cooler (per the manual):

Yep, that's the missing heat exchanger I was looking for today, present on the Escape plug in, not on the Maverick!

 

[The Real Maverick]

I'm with you but you showed a plumbing T. I agree it is evidence. Are you sure the Mav has no T somewhere else?

 

[heady]

I'm with you but you showed a plumbing T. I agree it is evidence. Are you sure the Mav has no T somewhere else?

100% positive there is no branch refrigerant line on this truck anywhere.

 

[MakinDoForNow]

I'm with you but you showed a plumbing T. I agree it is evidence. Are you sure the Mav has no T somewhere else?

As I remember the exchanger was a three chamber one for the AC coolant, one for the transaxle fluid, the third for the battery coolant. Whatever proposed or built vehicle? I'm thinking it was removed for the maverick since the tech says it's not there.

 

[Darryl]

I'm with you but you showed a plumbing T. I agree it is evidence. Are you sure the Mav has no T somewhere else?

I'm a tech at a Ford dealership, 1. I looked at FORD'S online repair manual. 2. I looked at the VEHICLE. I think I'd know what I'm looking at. If I didn't, I'd have no business working on vehicles. There is absolutely no connection between the battery cooling system and the AC. The lines run from the compressor to condenser, to the expansion valve, to the evaporator, back to the compressor, there are no other branches. None. There's only a connection between the two AC and battery cooling on the plug in hybrid which the Maverick does not have

 

[Darryl]

As I remember the exchanger was a three chamber one for the AC coolant, one for the transaxle fluid, the third for the battery coolant. Whatever proposed or built vehicle? I'm thinking it was removed for the maverick since the tech says it's not there.

It's just not there. He can ask 20 different ways, and it still won't be there

 

[The Real Maverick]

I'm a tech at a Ford dealership, 1. I looked at FORD'S online repair manual. 2. I looked at the VEHICLE. I think I'd know what I'm looking at. If I didn't, I'd have no business working on vehicles. There is absolutely no connection between the battery cooling system and the AC. The lines run from the compressor to condenser, to the expansion valve, to the evaporator, back to the compressor, there are no other branches. None. There's only a connection between the two AC and battery cooling on the plug in hybrid which the Maverick does not have

Thanks for confirming my hunch.
While 2022 Service Manuals showed it in a Maverick, it was a mis-print or copy & paste mistake.

Like I said. I've never seen evidence of active cooling via OBDII but never traced the lines in my truck. Always wanted to, just never got around to it.

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